var createError = require('http-errors');
var express = require('express');
var path = require('path');
var cookieParser = require('cookie-parser');
var logger = require('morgan');

var indexRouter = require('./routes/index');
var usersRouter = require('./routes/users');
var petsRouter = require('./routes/pets');
var productsRouter = require('./routes/products');
const cors = require("cors");

var app = express();

require('./db');
// 设置请求跨域头
app.all('*', function(req, res, next) {
  res.header("Access-Control-Allow-Origin", "http://localhost:3000");
  res.header("Access-Control-Allow-Origin", "http://localhost:8080");
  res.header("Access-Control-Allow-Origin", "http://127.0.0.1:8080");
  // res.header("Access-Control-Allow-Origin", "*");
  res.header("Access-Control-Allow-Headers", "X-Requested-With,Content-Type");
  res.header("Access-Control-Allow-Methods","PUT,POST,GET,DELETE,OPTIONS");
  next();
});

// view engine setup
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'jade');

app.use(logger('dev'));
app.use(express.json());
app.use(express.urlencoded({ extended: false }));
app.use(cookieParser());
// const multer = require('multer');
// const avatarUpload = multer({ dest: 'public/images/' });
app.use(cors());

app.use('/', indexRouter);
app.use('/users', usersRouter);
app.use('/pets', petsRouter);
app.use('/products', productsRouter);


app.use(express.static(__dirname));
app.use(express.static('public'));

// app.use(express.static(path.join(__dirname, './dist')));
// catch 404 and forward to error handler
app.use(function(req, res, next) {
  next(createError(404));
});

// error handler
app.use(function(err, req, res, next) {
  // set locals, only providing error in development
  res.locals.message = err.message;
  res.locals.error = req.app.get('env') === 'development' ? err : {};

  // render the error page
  res.status(err.status || 500);
  res.render('error');
});

module.exports = app;
